TY  - BOOK
TI  - Advances in the astronautical science : proceedings of the sixth annual meeting of the American astronautical society
U1  - 523.111 ADV 
PY  - 1961///.
CY  - New York : 
PB  - The Macmillan Company, 
KW  - Astronomy
KW  - Astronautical science
ER  -